misc/sgi-xp/xpc_partition.c

13  *	This is the part of XPC that detects the presence/absence of
265 static int __xpc_partition_disengaged(struct xpc_partition *part,
268 	short partid = XPC_PARTID(part);
272 	if (part->disengage_timeout) {
274 			if (time_is_after_jiffies(part->disengage_timeout)) {
290 		part->disengage_timeout = 0;
294 			del_timer_sync(&part->disengage_timer);
296 		DBUG_ON(part->act_state != XPC_P_AS_DEACTIVATING &&
297 			part->act_state != XPC_P_AS_INACTIVE);
298 		if (part->act_state != XPC_P_AS_INACTIVE)
299 			xpc_wakeup_channel_mgr(part);
301 		xpc_arch_ops.cancel_partition_deactivation_request(part);
306 int xpc_partition_disengaged(struct xpc_partition *part)
308 	return __xpc_partition_disengaged(part, false);
311 int xpc_partition_disengaged_from_timer(struct xpc_partition *part)
313 	return __xpc_partition_disengaged(part, true);
320 xpc_mark_partition_active(struct xpc_partition *part)
325 	dev_dbg(xpc_part, "setting partition %d to ACTIVE\n", XPC_PARTID(part));
327 	spin_lock_irqsave(&part->act_lock, irq_flags);
328 	if (part->act_state == XPC_P_AS_ACTIVATING) {
329 		part->act_state = XPC_P_AS_ACTIVE;
332 		DBUG_ON(part->reason == xpSuccess);
333 		ret = part->reason;
335 	spin_unlock_irqrestore(&part->act_lock, irq_flags);
344 xpc_deactivate_partition(const int line, struct xpc_partition *part,
349 	spin_lock_irqsave(&part->act_lock, irq_flags);
351 	if (part->act_state == XPC_P_AS_INACTIVE) {
352 		XPC_SET_REASON(part, reason, line);
353 		spin_unlock_irqrestore(&part->act_lock, irq_flags);
356 			xpc_arch_ops.request_partition_reactivation(part);
360 	if (part->act_state == XPC_P_AS_DEACTIVATING) {
361 		if ((part->reason == xpUnloading && reason != xpUnloading) ||
363 			XPC_SET_REASON(part, reason, line);
365 		spin_unlock_irqrestore(&part->act_lock, irq_flags);
369 	part->act_state = XPC_P_AS_DEACTIVATING;
370 	XPC_SET_REASON(part, reason, line);
372 	spin_unlock_irqrestore(&part->act_lock, irq_flags);
375 	xpc_arch_ops.request_partition_deactivation(part);
378 	part->disengage_timeout = jiffies + (xpc_disengage_timelimit * HZ);
379 	part->disengage_timer.expires = part->disengage_timeout;
380 	add_timer(&part->disengage_timer);
383 		XPC_PARTID(part), reason);
385 	xpc_partition_going_down(part, reason);
392 xpc_mark_partition_inactive(struct xpc_partition *part)
397 		XPC_PARTID(part));
399 	spin_lock_irqsave(&part->act_lock, irq_flags);
400 	part->act_state = XPC_P_AS_INACTIVE;
401 	spin_unlock_irqrestore(&part->act_lock, irq_flags);
402 	part->remote_rp_pa = 0;
482 					"part of the local partition; skipping "
495 				dev_dbg(xpc_part, "Nasid %d is part of a "
532 	struct xpc_partition *part;
535 	part = &xpc_partitions[partid];
536 	if (part->remote_rp_pa == 0)
541 	part_nasid_pa = (unsigned long)XPC_RP_PART_NASIDS(part->remote_rp_pa);